Improvement in bolts



UNITED STATES JAMES F. CARLIN, OF ALEXANDRIA, VIRGINIA.`

IMPRCVEMENT IN BOLTS.

Specification forming part of Letters Patent No. 139,767, dated June 10,1873; application filed May 24, 1873.

To all whom it may concern:

Be it known that I, JAMES F. CARLIN, of Alexandria, in the county ofAlexandria and State of Virginia, have invented certain Improvements inGate or Door Bolts, of which the following is a specication, referencebeing had to the accompanying drawing, in

y which- Figure 1 represents a plan of a door-bolt having myimprovements applied thereto, and Fig. 2 a side elevation of the same.Figs. 3 and 4 represent modilied forms of the improvement.

My invention relates to a certain new and useful improvement in gate ordoor bolts; and it consists in providing the slide-bolt of such, and oneof its guide-staples (or else the bedplate itself of the bolt) each witha hasp or an arm provided with an eye or opening, and so arranging thesewith relation to each other that .when the slide-bolt is slipped inorder to fasten the door, the hasp or shackle of a padlock may then bepassed through their openings, and in that way, when locked, locking thedoor.

To enable others skilled in the art to make, construct, and use myimprovement, I will now proceed to describe its parts in detail.

The plate A, by means of which the bolt is secured to the gate or door,may be made of any suitable form, size, and material, according to thestrength and size of bolt required, and, like the plates of ordinarybolts, is provided with two or more guide-staples, a and b, as may bedeemed best, the ends of which are firmly riveted or otherwise securedto the plate.

In the drawing, the bolt B and openings in the staples a and b arerepresented as being square, but they may be made round or of any othersuitable shape.

Between the bolt B and plate A is arranged a spring, c, one end of whichis secured by rivet or screw to the latter, while the other is made tobear against the inner "face of the former, and is used, as in others ofthe kind, for the purpose of retaining the bolt in place when withdrawnfrom the staple. On the end of the bolt B is formed an arm, d, providedwith an opening or eye, e,

while a corresponding arm, f, is secured to or otherwise formed ontherear guide staple b, and is also provided with an opening or eye, g. Thetwo arms d and f are so arranged that when the bolt B is slipped intothe staple of the door-frame to bolt the gate or door, their respectiveopenings e and gwill be directly opposite to and in close proximity witheach other, ready to receive the hasp k of a padlock, C, as shown inFig. 1, and thus lock the bolt.

Where the arm d of the bolt B is arranged on the outer end` of thelatter, as shown in Figs. 1 and 2, that endof the bolt may be reduced insize, either in breadth or thickq ness, for a length equal to thedistance of the required play or movement of the bolt y in bolting orunbolting the door, so as to form a shoulder to abut against the innerside of gthe. guide-staple b, in order to prevent its withdrawal orloss, in the manner shown at i, Fig. 2. When, however, the arm d isarranged and secured to the bolt B on the inside of guidestaple b, suchreduction for that purpose would be wholly unnecessary 5 but such achange would involve a change of the arm f from staple b to a middlestaple, 1, as shown in Fig. 4; otherwise shoulder i must still beretained, and arm d moved forward so asto be locked to staple a insteadof the middle one r. And with regard to arm f, instead of its being somade as to form part of either of the staples a, b, or r, it may be somade as to be entirely separate and distinct therefrom, it in such casebeing independently secured to the plate A; but the former is deemed thesimpler and better inode of making and securing it.

Again, instead of making the arms d and fand eyes e and g in the mannershown in Figs. 1 and 2, theymay be made as shown in Fig. 3. A tongue, m,with an opening, g, being formed on either one of them, and an elongatedopening made in the other of a size sufficient to receive the tongue m,so that when the latter is projected through opening at e the hasp of apadlock may be passed through opening g, and in that way lock the twotogether, as before. r

Having described my improvement in gate or door bolts, what I claim asnew, and desire or 1, or to the bed-plate A of the bolt, as deto securebyLetters Patent, is scribed and shown, for the purpose set forth. Theslide-bolt B, when provided with a hasp JAMES F. CARLIN. or arm, d,having an opening or eye, e, and used in connection with a hasp orarm,f, hav- Witnesses: ing an opening or eye, g, formed on or other- D.Gr. STUART,

A. MCCOLLUM. -y

Wise secured to one of the guide-staples a, b, l

